Google’s chest X-ray AI for TB now screens patients in African clinics

Google Research says its tuberculosis X-ray models have become a certified clinical tool used in African clinics, while open versions help health ministries build their own.

1 min read

Google Research

At a glance

chest X-rays read so far
25,000+
turnaround, down from weeks
45 sec
MedGemma downloads
10M+
What’s new
Pretoria-based Nexus AI turned Google’s chest X-ray algorithms into a certified screening tool, now used in about 40 healthcare facilities. Indonesia is fine-tuning Google’s open MedGemma models for its own national screening.
Who it affects
Health workers and patients in places with few radiologists, and the ministries planning TB screening programmes.

TB kills an estimated 1.23 million people a year, and a key bottleneck is the shortage of radiologists to read X-rays in remote clinics and mines. Google first showed in 2019 that deep learning could match experienced radiologists at spotting TB. Nexus AI’s device holds EU Class IIb certification, and the company is pursuing WHO prequalification and US FDA clearance. Indonesia aims to screen 50 million people a year and keeps patient data inside the country by running the models locally. For places without X-ray machines, Google’s HeAR model screens from cough sounds recorded on a smartphone.

Why it matters

This is a rare case of medical AI crossing the gap from published paper to certified bedside tool, a step that took audits and partners, not just a better model. Open models matter too: they let countries build screening on their own servers instead of sending patient scans abroad. Whether faster screening turns into more people treated is the open question.

Bringing foundational models to the front lines of TB screening

Google Research

research.google

Summary by Second Order AI. Full reporting is at the original source.